github.com/circular-dark/docker@v1.7.0/api/client/logout.go (about)

     1  package client
     2  
     3  import (
     4  	"fmt"
     5  
     6  	flag "github.com/docker/docker/pkg/mflag"
     7  	"github.com/docker/docker/registry"
     8  )
     9  
    10  // CmdLogout logs a user out from a Docker registry.
    11  //
    12  // If no server is specified, the user will be logged out from the registry's index server.
    13  //
    14  // Usage: docker logout [SERVER]
    15  func (cli *DockerCli) CmdLogout(args ...string) error {
    16  	cmd := cli.Subcmd("logout", "[SERVER]", "Log out from a Docker registry, if no server is\nspecified \""+registry.IndexServerAddress()+"\" is the default.", true)
    17  	cmd.Require(flag.Max, 1)
    18  
    19  	cmd.ParseFlags(args, true)
    20  	serverAddress := registry.IndexServerAddress()
    21  	if len(cmd.Args()) > 0 {
    22  		serverAddress = cmd.Arg(0)
    23  	}
    24  
    25  	if _, ok := cli.configFile.AuthConfigs[serverAddress]; !ok {
    26  		fmt.Fprintf(cli.out, "Not logged in to %s\n", serverAddress)
    27  	} else {
    28  		fmt.Fprintf(cli.out, "Remove login credentials for %s\n", serverAddress)
    29  		delete(cli.configFile.AuthConfigs, serverAddress)
    30  
    31  		if err := cli.configFile.Save(); err != nil {
    32  			return fmt.Errorf("Failed to save docker config: %v", err)
    33  		}
    34  	}
    35  	return nil
    36  }